PRO-X 8" Shallow Mid-Range Bullet Loudspeaker | 250W RMS 4-Ohm
PRO-X 8" Shallow Mid-Range Bullet Loudspeaker | 250W RMS 4-Ohm
Product Overview
DS18 PRO-X8.4BMSL
8” Slim Mid-Range Loudspeaker with Bullet Tweeter
At just 2.71” mounting depth, DS18’s PRO-X8.4BMSL delivers full-size performance in places most drivers can’t fit.
Loud Output
This speaker’s slim mounting depth makes it perfect for doors, custom pods, or stacked wall builds. With 250W RMS / 500W MAX power handling and 95dB sensitivity, the PRO-X8.4BMSL gives you full-volume output even on limited power.
Coaxial Design
The integrated aluminum bullet tweeter boosts your highs without needing extra drivers. Paired with a stiff non-pressed paper cone, you get clean vocals and aggressive attack across the 80Hz–12kHz range.
Built for Pressure
The PRO-X8.4BMSL’s steel basket adds strength and stability, so the internal components stay rigid at high volumes. The ferrite magnet powers deeper midbass drops, and the 1.5” Kapton voice coil resists heat and distortion when you’re pushing hard.
Most slim speakers cut corners. DS18’s PRO-X8.4BMSL raises the bar
Key Features
- 8" Shallow Mid-Range w/Bullet
- MAX Power: 500 Watts
- RMS Power: 250 Watts
- Impedance: 4-Ohm
- Ferrite Magnet
- 95dB
Specifications
| Nominal Diameter | 8" / 203mm |
|---|---|
| Nominal Impedance | 4 ohms |
| RMS Power Handling | 250W |
| MAX Power Handling | 500W |
| Sensitivity (1w/1m) | 95db |
| Frequency Response | 80Hz - 12kHz |
| Recommended HI Pass Crossover | 120Hz |
| Sold in Pair or Single | Single |
| Grill Included | No |
| Voice Coil Diameter | 1.5" / 38.1mm |
| Voice Coil Former Material | Kapton |
| Winding Material | CCAW |
| Cone Material | Non-Pressed Paper |
| Bullet Material | Aluminum |
| Bullet Color / Finish | Gloss Red |
| Surround Material | Cloth |
| Basket Material | Steel |
| Basket Finish / Color | Gloss Red |
| Magnet Material | Ferrite |
| Magnet Weight | 21 Oz |
| Equivalent Volume | 13.2L / 0.468ft3 |
| Excursion (one way) | 1.5mm |
| Free Air Resonance | 100Hz |
| Mechanical Factor | 9.769 |
| Electrical Factor | 0.733 |
| Total Factor | 0.682 |
| Mechanical Mass | 11.703g |
| Mechanical Compliance | 0.204mm/N |
| BL Factor | 5.74 |
| Voice Coil Inductance | 0.214mH |
| Cone Area | 213.8Cm2 |
| DC Resistance | 3.3ohms |
| Overall Diameter | 8.23" / 209mm |
| Overall Depth | 2.96" / 75mm |
| Front Mount Baffle Cutout | 7" / 180mm |
| Mounting Depth | 2.71" / 69mm |
| Motor Diameter | 4.3" / 110mm |







